CN1256390A - Filter of air conditioner and device for mounting the same - Google Patents

Abstract

A device for installing a filter of an air conditioner, which can easily and securely install the filter. The air conditioner has a casing, a front plate fixed on the front surface of the casing, and a heat exchanger installed in the casing. The device includes a filter holder mounted on the heat exchanger for accommodating the filter. The filter has an upper case and a lower case which can be detachably connected with the upper case, so that a space for accommodating the filter is formed inside the upper case and the lower case.

Description

Air conditioner filter and device for installing the filter

The present invention relates to an air conditioner, and more particularly, to a filter for an indoor unit of the air conditioner, and a device for easily installing the filter.

Generally, a split type air conditioner has an outdoor unit placed outdoors and an indoor unit placed indoors. There is a heat exchanger inside the indoor unit for exchanging heat with the indoor air to cool the indoor temperature to a desired temperature. In order to clean the indoor air, various filters are currently installed on the indoor unit.

1 shows a disassembled perspective view of an indoor unit of an air conditioner of the related art; FIG. 2 shows a section of the indoor unit shown in FIG. 1. Referring to FIG. The structure of an indoor unit of a related art air conditioner equipped with a filter will now be described with reference to these two figures.

In the casing 1 of the indoor unit, there is a fan assembly 3 for sucking indoor air; in addition, in front of the fan assembly 3, there is a heat exchanger 4 . The heat exchanger 4 has a refrigerant tube, a plurality of fins for heat exchange formed on the refrigerant tube, and end plates 4a on opposite ends of the heat exchanging fins. In addition, at the front of the housing 1, there is a front panel 2; and at the front of the front panel 2, a suction grill 5 for sucking indoor air is rotatably installed. At the bottom of the front panel 2, there is a discharge opening 9 on which an openable/closed ventilation window is mounted. At the same time, in order to clean the circulating air, various filters are installed inside the indoor unit. For example, on the front panel 2, a pre-filter 6 is installed, and at the rear of the pre-filter 6, another filter 7 is generally installed. This pre-filter 6 made of mesh fabric serves to filter larger particles. Although there are different types of filters 7 (for example, deodorizing filters made of activated carbon, and filters that use plasma discharge to collect fine particles (called "electrostatic filters")), they are generally used Deodorizing filter. That is: when the air conditioner is working, the indoor air flows into the indoor unit through the above-mentioned suction grid 5, then when the air passes through the pre-filter 6, the air is cleaned, and then passes through the above-mentioned filter 7 (for example, deodorizing filter), the odor in the indoor air is removed. Then, the cleaned air undergoes heat exchange in the above-mentioned heat exchanger 4 , becomes air in a low-temperature state, and is discharged through the above-mentioned discharge opening 9 .

Referring now to FIG. 1 and FIG. 2, the installation structure of the filter of the related art will be described.

An upper fixing member 12 and a lower fixing member 14 are formed on the middle frame 2a and the side frames 2b of the above-mentioned front panel 2 on which the above-mentioned pre-filter 6 and filter 7 are installed. Since the above-mentioned deodorizing filter is generally used as the filter 7, the fixing members 12 and 14 are also used for installing the deodorizing filter. That is, as shown in FIG. 2 , the pre-filter 6 is supported on the top surface of the upper fixing member 12 , and the filter 7 is installed between the upper fixing member 12 and the lower fixing member 14 . The filter 7 is held in the installed position by the protruding portion 14a formed on the front end of the lower fixing member 14. As shown in FIG.

However, this related art filter mounting device has the following problems.

First, in this related art, the installation of the filter 7 is not firm, and during the working process of the air conditioner, noise will be generated due to the vibration of the filter 7 .

Second, in the related art, the pre-filter 6 and the filter 7 are installed very close together, so that there is little space between the pre-filter 6 and the filter 7, and between the filter 7 and the heat exchanger 4 , which reduces the intake of air and reduces the efficiency of heat exchange; and when the air moves in a small space, noise will be generated.

Third, the filter installation structure of the related art is used for installing deodorizing filters with a simple structure, and is not suitable for installing filters with more functions (eg, electrostatic filters) that are more popular at present. This is because, in order to ensure the safe operation of the pre-filter, its installation position should be separated from the electrostatic filter by a certain distance; and because the voltage of the electrostatic filter is high, the parts around the electrostatic filter must not subject to electrical interference. In addition, considering the diversity of requirements for the air conditioner, it is better to selectively install the deodorizing filter and/or the electrostatic filter, or install the two filters at the same place. For example, it is required to selectively install a deodorizing filter in an environment requiring a deodorizing filter, and selectively install an electrostatic filter in an environment requiring an electrostatic filter, which is impossible to do in this related art arrived.

Therefore, the present invention aims to provide a filter for an indoor unit of an air conditioner, and a device for installing the filter; question.

SUMMARY OF THE INVENTION An object of the present invention is to provide a filter mounting device for easily and securely mounting a filter.

Another object of the present invention is to provide a filter installation device which can minimize the reduction of air suction caused by the filter and improve heat exchange efficiency.

Still another object of the present invention is to provide a filter mounting device which can selectively use a deodorizing filter and an electrostatic filter easily.

Additional features and advantages of the invention will be set forth in the description which follows, and in part can be learned from the description, or can be learned by practice of the invention. The objects and other advantages of the present invention can be realized and realized by the structure particularly pointed out in the following description and claims as well as the appended drawings.

In order to achieve these and other advantages, and in accordance with the purpose of the present invention, as explained in detail and broadly below, the device for installing a filter for an air conditioner includes a filter holder mounted in an opening in the front panel of the air conditioner , which holds the filter. And the air conditioner has a casing, a front plate fixed on the front surface of the casing, and a heat exchanger installed in the casing.

One end of the filter holder is preferably fixed to an end plate of the heat exchanger, and the other end is fixed to the refrigerant tube of the heat exchanger.

The filter bracket includes a receiving part for receiving the filter; a first fixing part extending outward from the front end of the receiving part for being fixed to an end plate of the air conditioner; The front end protrudes outward for a second fixing portion fixed to the refrigerant pipe of the air conditioner.

The filter includes an upper case and a lower case detachably connected with the upper case. A space for accommodating the filter is formed inside the upper and lower housings.

Therefore, the device for easily installing the filter of the air conditioner of the present invention can securely fix the filter and can make the air flow smoothly, thus improving the heat exchange efficiency. In addition, deodorizing filters or electrostatic filters can also be used selectively.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to further explain the invention.

The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this specification, illustrate some embodiments of the invention. Together with the description, these drawings serve to explain the principles of the invention. In the attached picture:

Fig. 1 represents the disassembled perspective view of the indoor unit of a split type air conditioner of the related art;

Fig. 2 is a section of the indoor unit shown in Fig. 1;

Fig. 3 shows a cross-section of a filter mounting device according to a preferred embodiment of the present invention;

Fig. 4 is the disassembled perspective view of device shown in Fig. 3;

Fig. 5 shows the disassembled perspective view of the filter and the installation device of the filter according to another embodiment of the present invention;

Figure 6 is a perspective view from the front of a filter holder in Figure 5;

Figure 7 is a perspective view from the rear end of a filter holder in Figure 5;

Fig. 8 represents the section taken by line I-I among Fig. 5;

Figure 9 is a plan view showing the filter holder and heat exchanger assembly in Figure 5;

Fig. 10 represents a section taken by line II-II among Fig. 5;

Figure 11 is a plan view showing the filter in Figure 5;

Fig. 12 represents the front view of Fig. 5;

Fig. 13 represents a section taken through line III-III among Fig. 11;

Fig. 14 represents a section taken through line IV-IV among Fig. 11;

Figure 15 shows a bottom view of the upper case in Figure 5;

FIG. 16A shows an enlarged perspective view of part "A" in FIG. 15;

FIG. 16B represents an enlarged perspective view of portion "B" in FIG. 15;

Fig. 17 represents a section of the filter of the present invention installed on the filter holder;

Fig. 18 shows another section of the filter of the present invention installed on the filter holder;

Figure 19 shows a front view of a front panel according to a preferred embodiment of the present invention;

Figure 20 shows a section taken through the line V-V of Figure 19; and

FIG. 21 shows a section taken through line VI-VI in FIG. 19 .

Preferred embodiments of the present invention, shown by way of example, will now be described in detail with reference to the accompanying drawings. The components in the present invention that are the same as those in the above-mentioned related art are denoted by the same reference numerals, and the detailed description thereof will be omitted. Fig. 3 shows a section of a mounting device for mounting a filter according to a preferred embodiment of the present invention; Fig. 4 shows a disassembled perspective view of the device shown in Fig. 3 . A filter installation device according to a preferred embodiment of the present invention will now be described based on these two figures.

Different from the above-mentioned related technologies, the present invention does not directly install the filter 7 on a front panel 2, but uses the filter holder 20 for placing the filter as a medium to install it on the front panel. In detail, there is an upper fixing part 12 and a lower fixing part 14 on the middle frame 2a of the front panel 2 . The filter holder 20 has a fixing portion, and an accommodating portion for accommodating the filter 7 . The second fixing part 24b of the fixing part is used to be fixed on the lower fixing part 14, and the first fixing part 24a thereof is used to be fixed on an end plate 4a of the above-mentioned heat exchanger. A filter supporting portion 26a or 26b of the containing portion extends to the inside of the first or second fixed portion for supporting the bottom of the filter; and a connecting portion 22 of the containing portion for connecting the first A fixed portion and a second fixed portion support an upper surface and two side surfaces of the filter. That is: the two opposite ends of the fixing portion with respect to the connecting portion 22 extend to the outside of the receiving portion, and the supporting portion extends to the inner surface of the receiving portion. Preferably, a positioning projection 24c of the second fixing portion 24b for fixing to the lower fixing member 14 of the front panel 2 is formed in a fixing hole of the lower fixing member 14 for easy assembly. In addition, preferably, on the support portion 26a or 26b, there is a stopper 28 to prevent the inserted filter 7 from falling.

Now, the process of installing the filter in the above embodiment will be described.

One end of the filter bracket 20 is fixed on the lower fixing member 14 with screws, and the other end of the filter bracket 20 is fixed on the end plate 4a of the heat exchanger. When the filter 7 is inserted on the filter holder 20, the installation of the filter 7 is completed. As described above, in the present invention, since the filter is installed using the above-mentioned filter holder 20, the installation is simple and firm.

Now, a filter according to another embodiment of the present invention and a mounting device for the filter will be described. Fig. 5 shows a disassembled perspective view of a filter and a mounting device for the filter according to another embodiment of the present invention.

The basic principle of this embodiment is the same as the above-mentioned embodiment. That is: the filter is installed with the filter holder as the medium, except for the following - this embodiment improves the above-mentioned embodiment, makes the filter holder more securely installed, and can more effectively install different filter device. As shown in FIG. 5, the filter holder 100 is installed as follows. In the above embodiment, one end of the filter bracket 20 is fixed on the front plate 2, and the other end is fixed on the end plate 4a of the heat exchanger; and in this embodiment, the filter bracket 100 is fixed on the heat exchanger. An end plate 4a of the device and a refrigerant tube. That is: first install the filter bracket 100 on the heat exchanger 4 , and then, when installing the front plate 2 , fix the other end of the filter bracket 100 to the front plate 2 .

The filter holder of this embodiment will now be described with reference to FIGS. 5 to 7 .

The filter holder 100 includes a receiving part 110 for receiving the filter 200, and fixing parts 120 and 130 for fixing with the heat exchanger. The receiving part 110 can accommodate and hold the filter 200 and allow air to flow. That is, the receiving portion 110 includes a pair of side walls 111 a and 111 b , an upper horizontal piece 113 and a lower horizontal piece for connecting the side walls 111 a and 111 b , and a rear wall 112 . The top and bottom of the housing are open for air flow. On the inner surfaces of the side walls 111a and 111b, there are a pair of guides 116a and 116b for supporting and guiding the filter 200 . Thus, the filter 200 is held between the pair of guides 116a and 116b. That is to say, the filter 200 inserted between the upper horizontal member 113 and the lower horizontal member 114 is clamped by the side walls 111a, 111b, rear wall 112, and two guide members 116a and 116b of the above-mentioned accommodating portion. . Preferably, a protrusion 252 is arranged on the guides 116a and 116b, and at the bottom of the filter 200, a groove 250 adapted to the protrusion 252 is arranged to effectively prevent the filter 200 from drop (see Figure 18). At the same time, preferably, the filter holder 100 is made so as not to obstruct the flow of the air flow through the above-mentioned suction grid. Therefore preferably, a plurality of air openings 112a are provided at the lower end portion of the rear wall 112 . Preferably, at the lower end portion of the above-mentioned lower horizontal member 114, there are a plurality of air openings 114a. Preferably, between the rear wall 112 of the receiving portion and the upper horizontal member 113, a plurality of ribs 115 are formed; and these ribs 115 preferably protrude upward. These ribs 115 reinforce the filter holder 100 and maintain a certain space between the pre-filter and the filter holder 100 (see FIG. 8 ). Therefore, when an electrostatic filter is used as a filter, a sufficient gap can be maintained between the high-voltage discharge line of the electrostatic filter and the pre-filter so as to prevent danger caused by high-voltage discharge. In addition, an appropriate separation distance between the pre-filter and the filter is also advantageous from an air flow point of view. Meanwhile, preferably on the outer surface of the rear wall 112 of the filter holder 100, a plurality of wire fixing parts 140 are provided. The wire fixing member 140 can be, for example, an “L” shape that fits in opposite directions, so as to fix the wire supplying electric current with the wire fixing member 140 in the case of using an electrostatic filter.

The fixing part will now be described with reference to FIGS. 6 to 10 . The filter holder 100 has a first fixing portion 130 and a second fixing portion 120 on an opposite side of the first fixing portion 130 . The first fixing part 130 has a plurality of screw holes 132a for fixing to the end plate 4a of the heat exchanger with screws. At the bottom of the second fixed portion 120, there is a flat plate-shaped separable piece 134 with a vertical groove 124a in the center and a circular cut portion adapted to the shape of the refrigerant tube on both sides. 124b. That is, after the separable piece 124 is inserted between two refrigerant tubes, the central groove of the separable piece 124 is inserted into the cooling fin, and the cut portion is supported by the refrigerant tube. Therefore, the filter holder can be prevented from falling. This detachable sheet is not only limited to the embodiment shown and described in the figure, but can have many variations, as long as the detachable sheet 124 is compatible with the refrigerant pipe and/or refrigerant of the heat exchanger 4 The cooling fins of the tube can be separated. For example, when the separable sheet 124 has a semicircular cut portion, the separable sheet can be made separable from a refrigerant tube. At the same time, one end of the filter bracket 100 is fixed on the end plate 4a of the heat exchanger by screws, and the other end is matched with the refrigerant pipe and its cooling fins. However, as an auxiliary method, it is preferable to fix the filter holder 100 on the front plate 2 so as to be fixed more firmly. For example, the front plate 2 can have a fixing piece 32 and a positioning groove 34, and the above-mentioned second fixing part 120 can have a fixing protrusion 126 and a positioning protrusion on the top surface of the second fixing part 127. The positioning protruding portion 127 can make it easy to locate with the front plate 2 when the filter holder 100 is installed, and keep it firmly fixed. Therefore, since the filter holder 100 can be independently fixed, the filter holder 100 of the present invention is easy to install, and the installation is firm. In addition, one end of the filter bracket 100 can be selectively fixed not only on the heat exchanger, but also on the front plate 2, which makes the installation easy and firm, and can effectively prevent noise in the room and during work.

The filter of the present invention will now be described with reference to FIGS. 11 to 14 . The filter 200 is shaped with a high voltage discharge wire 232b and a dust collecting part 232a, and includes an upper case 230 and a lower case 240 connected to the upper case 230 . On the top surface 231a of the upper casing 230, there are a plurality of openings 231b for air flow. From the edge of the top surface 231a, a front wall 239a, a rear wall 239b and a side wall 239c extend downward. At the front ends of the front wall 239a and the rear wall 239b, there are many snap buttons 230a for connecting the upper shell and the lower shell. The upper housing has a handle 232 for carrying the filter 200 when the filter 200 is mated with the filter holder 100 .

Referring now to FIG. 15, the internal structure of the upper case will be described.

The partition wall 236 in the upper case 230 is spaced a certain distance from its side wall 239c, and in the space between the partition walls, there are high-voltage discharge wires 232b and a metal dust collector for collecting charged dust. Part 232a. On the partition wall 236, there are a plurality of guide projections 236a and 236b, and on the inner side of the partition wall, there is a fixing projection 237. That is: one end of the high voltage discharge wire 232b is fixed on the fixing bump 237, and wound around the guiding bump along the left and right direction. In the space between the partition wall 236 and the side wall 239c, there is a connection terminal 300 for electrical connection with the discharge wire 232b, and a part of the connection terminal elastically protrudes from the side wall. Preferably, a plurality of holes 231c are provided on both sides of the top surface of the upper case 230 for effectively draining the water in the filter 200 when the filter 200 is washed with water. Preferably, one end of the high voltage discharge wire 232b is fixed to the fixing projection 237 through a spring 238, and the guide projections 236a and 236b are made into required curvatures. As shown in FIG. 16A and FIG. 16B, it is preferable to have stoppers on the top of the guide protrusions 236a and 236b to prevent the high voltage discharge wire 232b from loosening. The above structure can effectively prevent the discharge wire from being in contact with the above-mentioned dust collection part 232a, because the spring 238 pulls the discharge wire 232b even when the discharge wire 232b is heated due to high voltage and the discharge wire 232b is elongated. wire 232b, keep it in tension. In addition, the curvature of the guide protrusions 236a and 236b can make the elastic force of the above-mentioned spring be smoothly transmitted to the discharge wire 232b.

The lower case 240 will now be described.

The basic structure of the lower case 240 is similar to that of the upper case 230 . That is: the lower case 240 has an open top, and front and rear walls and side walls, but there is one exception, that is, the lower case 240 preferably has no partition wall. Preferably, a protrusion 242 protrudes upwards from the rear wall of the lower case 240 to prevent the wrong connection direction of the lower case 240 . In addition, on the left and right sides of the rear wall, there are protrusions 244 protruding downward from the bottom surface to prevent the lower casing 240 from being inserted in the wrong direction. This structure can prevent the erroneous connection of the upper case 230 and the lower case 240, because when the upper case 230 and the lower case 240 are assembled incorrectly, when trying to connect the rear wall of the lower case 240 with the rear wall of the upper case 230 When the front wall is connected, the protrusion 242 and the handle 232 will interfere. Misalignment of the polarity of the discharge wire 232b due to wrong connection can thus also be prevented. At the same time, insertion errors can also be prevented because the projection 244 interferes with the front lower horizontal piece 114 on the filter holder 100 when the filter 100 is inserted into the filter holder 100 in an upside-down state.

Meanwhile, as shown in FIG. 17 , the first and second fixing portions on the filter holder 100 have contact terminals 320 which are in contact with the above-mentioned connection terminals 300 . Therefore, if the filter 200 is inserted into the guides 116 a and 116 b on the filter holder 100 , the contact terminal 320 comes into contact with the connection terminal 310 . In this case, the elastic contact of the well-contacted bump 310 of the connection terminal can stabilize the electrical connection.

Also as shown in FIG. 18 , the groove 250 on the filter 200 and the protrusion 252 on the guide piece 116 b can prevent the filter 200 from falling down and stabilize the power supply. Although, an electrostatic filter is described in the above embodiment. However, the filter of the present invention may be a filter other than an electrostatic filter. For example, when the upper case and the lower case are provided with activated carbon-coated mesh fabrics instead of the discharge wire and the dust collecting part, the filter can be used as a deodorizing filter. Preferably, when the suction grid is opened upwards, there is no electricity on the electrostatic filter, because the exposed electrostatic filter is dangerous.

Now referring to Fig. 19-Fig. 21, when the suction grid is opened, the structure of automatically cutting off the power supply to the electrostatic filter will be described.

On one side of the front plate 2 there is a switch 408 and on the suction grid there is a bump for operating the switch. Thus, when the suction grid is closed (or vice versa), the bump is in contact with the switch. In detail, the fitting portion of the switch has a fitting groove 402 , a support rib 406 formed upward in the fitting groove, and a switch 408 in the fitting groove 402 . To stabilize the switch fit, the support rib 406 supports one side of the switch and the support guide 404 supports the other side of the switch. Preferably, in order to neatly route the wires, a part of the front panel 2 is cut off to form a hook-shaped clip 420, and the wires supplying power to the electrostatic filter are placed in the clip.

At the same time, it is best to selectively use deodorizing filters or electrostatic filters according to the environment in which the air conditioner is used. Therefore, an auxiliary device for installing a general deodorizing filter is needed to supplement the above-mentioned filter installation device, which auxiliary device includes two fixing members 12 and 14 located on the opposite sides of the middle frame 2a and the side frame 2b of the front panel . That is: the auxiliary device includes a lower fixing piece 14 above the fixing piece 32 and the positioning groove 34 , and an upper fixing piece 12 above the lower fixing piece 14 and separated from the lower fixing piece 24 by a certain distance. Therefore, the present invention can selectively or completely install the deodorizing filter and the electrostatic filter.

The filter of the indoor unit of the air conditioner of the present invention and the device for easy installation of the filter have the following advantages:

First, installing a filter holder that accommodates the filter prior to mounting the filter on the filter holder allows for easy filter installation/removal. In addition, the direct mounting of the filter holder to the heat exchanger makes installation easy and increases productivity. The filter bracket is additionally fixed on the front plate, so that the filter bracket is installed more firmly, and the vibration generated during the working process of the indoor unit can be reduced.

Second, the proper space between the pre-filter and the filter formed by the ribs on the upper part of the filter holder can solve the electrical problems when using the electrostatic filter. In addition, the proper space in front of the filter holder, ensured by the ribs, allows smooth passage of the airflow.

Third, it is possible to prevent the filter from being installed incorrectly, and the filter from being inserted into the filter holder by mistake. Using connection terminals and contact terminals to apply high voltage to the discharge wire can simplify the structure and stabilize the applied high voltage. The convenience of using the air conditioner can be improved by selectively installing a deodorizing filter and/or an electrostatic filter.

Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes and improvements can be made to the filter of the indoor unit of the air conditioner and the easy-to-install device of the filter of the present invention. Therefore, as long as these improvements and changes come within the scope of the appended claims and their equivalents, they are all covered by the claims.

Claims (19)

1. An installation device for a filter of an air conditioner, the air conditioner has a housing, a front plate fixed on the front surface of the housing, and a heat exchanger installed in the housing, the device include: A filter support, it is installed in the opening of this front plate, is used for receiving this filter, it is characterized in that, one end of this filter support is fixed on an end plate of this heat exchanger, and its other end is fixed on on the refrigerant tubes of the heat exchanger. 2. The device according to claim 1, wherein the upper surface of the filter bracket fixed on the heat exchanger is also fixed on the front plate. 3. The device of claim 1, wherein the filter holder comprises: a housing portion for housing the filter, a first fixing part protruding outward from the front end of the receiving part for fixing on an end plate of the air conditioner; and The second fixing part protrudes outward from the front end of the receiving part, and is used to be fixed on the refrigerant pipe of the air conditioner. 4. The device according to claim 3, wherein openings are arranged on the top and bottom surfaces of the receiving part to allow the air flow to pass through smoothly; an opening is also arranged on the front surface of the receiving part for inserting the filter ; There are also guides on the inner wall of the accommodating part for supporting the filter. 5. The device according to claim 4, wherein the rear surface of the receiving portion has a plurality of openings for air circulation. 6. The apparatus of claim 5, wherein the receiving portion includes at least one rib protruding upward from a top surface thereof for maintaining a gap between the front plate and the filter holder. 7. The device as claimed in claim 4, wherein the guide of the filter holder has a groove, and the filter has a protrusion adapted to the groove for firmly fixing the filter on the filter holder. 8. The apparatus of claim 3, wherein the front panel includes a fixed portion, and the second fixed portion includes a protrusion engaging the fixed portion. 9. The device of claim 8, wherein the front plate includes a positioning slot, and the second fixing portion includes a positioning protrusion corresponding to the positioning slot. 10. The device of claim 1, wherein the filter comprises: an upper case, and A lower case can be detachably connected with the upper case, so a space for accommodating a filter is formed in the upper case and the lower case. 11. The device of claim 10, including a handle on the front surface of the upper housing. 12. The device of claim 11, wherein the lower housing includes a protrusion on a side opposite to the handle of the upper housing for preventing wrong connection. 13. The device as claimed in claim 10, wherein the lower housing comprises a protrusion protruding downward from a bottom surface thereof for preventing wrong insertion. 14. The apparatus of claim 10, wherein the upper case comprises a fixing protrusion for fixing a discharge wire, and a guide protrusion supporting the discharge wire inside and on both sides. 15. The device of claim 14, wherein the guide projection is curved. 16. The device according to claim 15, wherein the discharge wire is fixed to the fixing protrusion by a spring. 17. The device of claim 10, wherein the filter holder includes a contact terminal on both sides, the terminal has a portion elastically exposed inside the filter holder, and the filter is in the Its two sides include a connection terminal for contacting with the contact terminal. 18. The device as claimed in claim 10, characterized in that, the rear wall of the upper housing of the filter comprises a protrusion for clamping electric wires for accommodating electric wires for applying high voltage to the discharge electric wires. 19. The apparatus of claim 18, wherein a middle frame on the front panel includes a fixing member for mounting a deodorizing filter.

Images